Security cameras at the Crofton, Neb., golf course spotted vandals entering golf carts early Tuesday morning, which were used to cause damage to the greens and tee boxes.

Lakeview Golf Course in Crofton, Neb., is a victim of vandalism that took place just a day after vandalism was discovered at a nearby school, the Yankton (S.D.) Daily reported.

General Manager Greg Baily said security cameras captured individuals entering golf carts at the course at approximately 1:20 a.m. Tuesday morning. The carts were then driven throughout the course, causing damage to greens, tee boxes and the carts themselves. Several carts were also crashed into the course’s ravines, the Daily reported.

An assessment of damages is still ongoing, Baily said, but he expects it to total at least $10,000, the Daily reported.

The carts are typically stored in a shed overnight, but were taken out the previous night in preparation for a tournament Tuesday, Baily said, noting that the keys were not inside the carts, the Daily reported.

“These people brought their own keys,” Baily said. “They knew exactly what they were doing, and they knew the course.”

The tournament proceeded as scheduled, he said, and the course will remain open for play. Baily referred further questions concerning the investigation to the Cedar County Sheriff’s Office, which is handling the case.

On Monday morning, officials at Crofton Community Schools discovered several vandalized school buses. Damage included flattened tires and egged exteriors. That incident is being investigated by school officials and the Crofton Police Department, the Daily reported.